mm.. as per your its says it should be "msvc2010" or the best thing is to use MinGW compiler as it comes pre-installed with Qt SDK. From your project properties select MinGW under Qt Version tab, and select MinGW under Edit build configuration also.

I have the same problem.
there are 3 header files which qtcreator cant fine .<comdef.h> <atlbase.h> and <stddef.h>.
which <stddef.h> is defined and used in "qglobal.h"
I had Vs 2013 and Vs 2010 installed when i installed QtCreator 5.2
then i found out that in order for the QtCreator to compile, i need to install VS2012 as well! so i did , this time the compilition is halted with those headers being not found!
How can i solve this issue ?
Regards in advance.

Any help? i am really having lots of problems.
i re installed qt 5.2 msvc2012 . apart from my former problem, now if i try to create a default application, it just fails!! with the compiler error :
bq. F:\ms\Qt5.2.0\5.2.0\msvc2012\include\QtCore\qglobal.h:46: error: C1083: Cannot open include file: 'stddef.h': No such file or directory